A wavy or sagging roof can be the result of one of several issues.
Roof sagging slightly.
Is the roof wet or does there appear to be any current or previous water damage.
Excess weight from snow and design flaws.
I would think any amount of sagging is probably bad especially if there is no weight overhead.
All flat roofs have a slight slope for drainage which can be created by the frame itself or by a sloped layer of insulation or other material underneath the exposed roofing.
Use your string line to determine how much the roof need to go up.
Sagging or low spots in a flat roof may be due to undersized or weakened roof joists or problems with the buildup layers beneath the exposed roofing.
The first step is to always check the beams so that you can determine their condition.
The roof could end up collapsing if the problem is not mitigated and fixing the issue will cost the homeowner.
Every roof is designed to support a specific maximum weight and anything above.
Being nervous about a sagging roof is understandable.
If you notice that there is a visible dip in your roof chances are you have a problem with one or several rafters and you may soon be facing more issues like water leaks bowed out walls or your roof caving in on you.
Deflection is the immediate sag produced when an object is set on a structural member.
When a roof begins to sag it is likely that there is an issue requiring attention.
Climb into the attic and familiarize yourself with your roof s structural anatomy.
Sagging rafters can lead to serious problems with the entire roofing system.
It s above your head.
If you find an infestation of.
Next assuming that there are no further problems with your timber beams you need to measure the length of the beam.
If the sagging appears in the plane of the roof that is up and down between the ridge and the eave and from side to side the sagging is probably due to deflection and creep of the rafters themselves figures 8 and 9.
What causes a sagging roof line.
If your rafters are still sagging a bit and it is causing your roof to dish out a little in the center of the roof sides add a 2x4 that goes all the way across the rafters in the center of the length of the rafters.
Once you have your wood in place you need to lay.
A madison roofing specialist may assist by determining the cause and how best to go about making the fixes.
Rain and snow can quickly damage a roof that isn t optimally designed and well.
Another type of.
Most people without any construction experience know that a roof should be flat and not wavy or sagging.
Foundation problems with the house.
Sagging roof lines can originate with the horizontal ceiling rafters.
